Region
Louisiana
5
Kansas
2
American Samoa
1
Baton Rouge Region
1
Delaware
1
Graham County
1
High Plains Aquifer
1
Humboldt River Watershed
1
Nevada
1
New Jersey
1
Solomon River Valley
1
Sparta Aquifer (Ark. and La.)
1
Tutuila Island
1
Tutuila Island (American Samoa)
1
Vernon Parish
1
Walworth County
1
Wisconsin
1